Home / 51,135.28-76,721.40-17,860.24

Finding the Fourth Proportional to 51,135.28, 76,721.40 and 17,860.24

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Solution

The fourth proportional to 51,135.28, 76,721.40 and 17,860.24 is: 26,796.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,135.28 : 76,721.40 = 17,860.24 : x
  2. Step 2: Convert to fraction form
    51,135.28/76,721.40 = 17,860.24/x
  3. Step 3: Cross multiply
    51,135.28x = 76,721.40 × 17,860.24
  4. Step 4: Simplify right side
    51,135.28x = 1,370,262,617.14
  5. Step 5: Solve for x
    x = 1,370,262,617.14/51,135.28
  6. Step 6: Final answer
    x = 26,796.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.